Quick answers
- Which hospitals does Mark W. Larson work at?
- Medicare's official clinician data lists Mark W. Larson at 3 hospitals: Kittitas Valley Community Hospital, Virginia Mason Medical Center and Yakima Valley Memorial. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark W. Larson see patients?
- Medicare's clinician data lists 1 practice location in Ellensburg, WA. Call before your visit to confirm the address.
- What is Mark W. Larson's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark W. Larson accept Medicare assignment?
- Yes. Medicare's clinician data says Mark W. Larson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark W. Larson?
- (509) 962-9841, as listed in official Medicare / NPI Registry data.
- What is Mark W. Larson's NPI number?
- 1194784090. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark W. Larson works
Medicare's Facility Affiliation Data lists Mark W. Larson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kittitas Valley Community HospitalEllensburg, WA · Critical Access Hospital · CCN 501333
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospital · CCN 500005
- Yakima Valley MemorialYakima, WA · Acute Care Hospital · CCN 500036
Practice locations
Addresses where Mark W. Larson is enrolled with Medicare (CMS data updated 2026-10-02).
- 603 S Chestnut StEllensburg, WA 98926 (509) 962‑9841
Group practices
Medicare enrollment lists Mark W. Larson as a member of this group (CMS data updated 2026-10-02).
- Rural Physicians Group-Pannu PLLC147 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Ellensburg
Clinicians with the same Medicare primary specialty in Ellensburg, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194784090 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians